... non-blind area,valve with safety device,with sewage valve,-50~350°CBNormal:valve without safety device,with sewage valve,temp ... °C ENormal:with safety check valve,with sewage valve,temp.:-50~350°C Icarbon steel IISS304,316,316L - 06Flange nominal pressure ... :86-13775129256Fax:86-519-85505269Skype:vicky_china68Website:www.qf-meter.com quartz glass level gauge,stainless steel flange type level meter,color ...